No Slide Title
... - You need a large aperture to get the Light Grasp but it is very difficult to make large,high quality lenses. Even if you can there are problems supporting them within the telescope so that light passes through but the device does not sag. • In addition the focal length varies with wavelength altho ...
... - You need a large aperture to get the Light Grasp but it is very difficult to make large,high quality lenses. Even if you can there are problems supporting them within the telescope so that light passes through but the device does not sag. • In addition the focal length varies with wavelength altho ...
Slide 1 - Hoover12
... • Focus - where the light rays meet after being reflected or refracted • Focal point - the point where the focus occurs • Focal length - the distance between the focal point and the mirror or lens • Primary focus - the focus of the primary mirror; the focus of the telescope • Chromatic aberration - ...
... • Focus - where the light rays meet after being reflected or refracted • Focal point - the point where the focus occurs • Focal length - the distance between the focal point and the mirror or lens • Primary focus - the focus of the primary mirror; the focus of the telescope • Chromatic aberration - ...
Science 9: Unit E: Space Exploration
... Science 9: Unit E: Space Exploration Topic 4: Bigger and Smarter Telescopes ...
... Science 9: Unit E: Space Exploration Topic 4: Bigger and Smarter Telescopes ...
In your own words explain what the following terms
... In your own words explain what the following terms mean/refer to: Horizon ...
... In your own words explain what the following terms mean/refer to: Horizon ...
Topic 4 Assignment - Science 9 Portfolio
... The largest refracting telescope was built at the Yerkes Observatory near the end of the nineteenth century. With it, Gerald Kuiper discovered methane gas on Saturn’s moon, Titan, and two new moons of Uranus. ...
... The largest refracting telescope was built at the Yerkes Observatory near the end of the nineteenth century. With it, Gerald Kuiper discovered methane gas on Saturn’s moon, Titan, and two new moons of Uranus. ...
Telescopes
... the only way of recording images from the time of Galileo until about the middle of the 19th century. • The first photograph taken through a telescope was in 1840. • Photography greatly increased the "light gathering power" of the telescope by allowing an image to build up on the film. • Electronic ...
... the only way of recording images from the time of Galileo until about the middle of the 19th century. • The first photograph taken through a telescope was in 1840. • Photography greatly increased the "light gathering power" of the telescope by allowing an image to build up on the film. • Electronic ...
Lecture 6
... • Do use figures to vividly exemplify the most prominent or advanced concepts • Do list your targets in a table, and estimate exposure times for each target ...
... • Do use figures to vividly exemplify the most prominent or advanced concepts • Do list your targets in a table, and estimate exposure times for each target ...
Telescope Quick Start Guide
... F ratio is inversely proportional to “speed” of telescope where speed is brightness per pixel per second at focal plane Large F ratio -> slower speed -> longer exposure times for detector Small F ratio -> faster speed -> shorter exposure times for detector Small F ratio is also good for telescopes w ...
... F ratio is inversely proportional to “speed” of telescope where speed is brightness per pixel per second at focal plane Large F ratio -> slower speed -> longer exposure times for detector Small F ratio -> faster speed -> shorter exposure times for detector Small F ratio is also good for telescopes w ...
Slide 1
... YOU CAN CHOOSE TWO WAVELENGTHS (COLORS) WHICH FOCUS AT THE SAME PLACE IF YOU USE THREE LENSES YOU CAN CHOOSE THREE WAVELENGTHS THAT FOCUS AT THE SAME PLACE IN ANY MULTIPLE LENSE ARRANGEMENT YOU CAN CHOOSE AS MANY WAVELENGTHS WHICH FOCUS AT THE SAME PLACE AS LENSES THAT YOU USE. ...
... YOU CAN CHOOSE TWO WAVELENGTHS (COLORS) WHICH FOCUS AT THE SAME PLACE IF YOU USE THREE LENSES YOU CAN CHOOSE THREE WAVELENGTHS THAT FOCUS AT THE SAME PLACE IN ANY MULTIPLE LENSE ARRANGEMENT YOU CAN CHOOSE AS MANY WAVELENGTHS WHICH FOCUS AT THE SAME PLACE AS LENSES THAT YOU USE. ...
Chapter 4
... “The ability of a telescope to enlarge images is the best-known feature of a telescope. Though it is so well-known, the magnifying power is the least important power of a telescope because it enlarges any distortions due to the telescope and atmosphere. A small, fuzzy faint blob becomes only a big, ...
... “The ability of a telescope to enlarge images is the best-known feature of a telescope. Though it is so well-known, the magnifying power is the least important power of a telescope because it enlarges any distortions due to the telescope and atmosphere. A small, fuzzy faint blob becomes only a big, ...
Powerpoint - UIUC HEP Group
... used for optical follow-up of gamma-ray bursts (huge explosions at the centers of galaxies). These bursts are very short, and a few-second response time is needed. The internet is required. ...
... used for optical follow-up of gamma-ray bursts (huge explosions at the centers of galaxies). These bursts are very short, and a few-second response time is needed. The internet is required. ...
Introduction to Telescopes
... This is the oldest design, and the one that Galileo used to make the first telescopic ...
... This is the oldest design, and the one that Galileo used to make the first telescopic ...
Fundamental properties of the Sun - University of Iowa Astronomy
... Telescopes do two things: • Collect “Big Piles” of light • Magnify object (it looks a lot closer than it is) ...
... Telescopes do two things: • Collect “Big Piles” of light • Magnify object (it looks a lot closer than it is) ...
Astronomy PowerPoint - Petal School District
... (no man has ever been farther than the moon) One way: space telescopes! the Hubble Space Telescope (looks at distant galaxies & at planets in our solar system) ...
... (no man has ever been farther than the moon) One way: space telescopes! the Hubble Space Telescope (looks at distant galaxies & at planets in our solar system) ...
Astronomy review - Petal School District
... (no man has ever been farther than the moon) One way: space telescopes! the Hubble Space Telescope (looks at distant galaxies & at planets in our solar system) ...
... (no man has ever been farther than the moon) One way: space telescopes! the Hubble Space Telescope (looks at distant galaxies & at planets in our solar system) ...
Science 9 Unit 5: Space Name:
... The largest refracting telescope was built at the Yerkes Observatory near the end of the nineteenth century. With it, Gerald Kuiper discovered methane gas on Saturn’s moon, Titan, and two new moons of Uranus. ...
... The largest refracting telescope was built at the Yerkes Observatory near the end of the nineteenth century. With it, Gerald Kuiper discovered methane gas on Saturn’s moon, Titan, and two new moons of Uranus. ...
Document
... the reason that the stars seem to twinkle when you look up at the sky. The atmosphere also partially blocks or absorbs certain wavelengths of radiation, like ultraviolet, gamma- and Xrays, before they can reach Earth. Scientists can best examine an object like a star by studying it in all the types ...
... the reason that the stars seem to twinkle when you look up at the sky. The atmosphere also partially blocks or absorbs certain wavelengths of radiation, like ultraviolet, gamma- and Xrays, before they can reach Earth. Scientists can best examine an object like a star by studying it in all the types ...
Document
... instead it is limited by the size of the objective mirror or lens. • This limitation on angular size is caused by the diffraction of light wave, which is a tendency of light waves to spread out when they are confined to a small area like mirrors • Diffraction limited angular size: the larger the siz ...
... instead it is limited by the size of the objective mirror or lens. • This limitation on angular size is caused by the diffraction of light wave, which is a tendency of light waves to spread out when they are confined to a small area like mirrors • Diffraction limited angular size: the larger the siz ...
Lecture9 - Physics
... secondary mirror does not cause a black spot or hole in the image. (It does, however, make the image a bit dimmer by reducing the total amount of light that reaches the primary mirror.) ...
... secondary mirror does not cause a black spot or hole in the image. (It does, however, make the image a bit dimmer by reducing the total amount of light that reaches the primary mirror.) ...
3.1 Using Technology
... makes one of first telescopes. • Galileo is first person credited for using it to look at stars. • Optical telescopes simply gather and focus light from distant stars so we can see it. • BUT Optical telescopes are only useful for viewing objects that emit light. ...
... makes one of first telescopes. • Galileo is first person credited for using it to look at stars. • Optical telescopes simply gather and focus light from distant stars so we can see it. • BUT Optical telescopes are only useful for viewing objects that emit light. ...
Chapter 6. - Department of Physics & Astronomy
... is in diameter, the smaller the diffraction fringes are. Thus the larger the telescope, the better its resolving power. ...
... is in diameter, the smaller the diffraction fringes are. Thus the larger the telescope, the better its resolving power. ...
History of the telescope
The earliest known working telescopes appeared in 1608 and are credited to Hans Lippershey. Among many others who claimed to have made the discovery were Zacharias Janssen, a spectacle-maker in Middelburg, and Jacob Metius of Alkmaar. The design of these early refracting telescopes consisted of a convex objective lens and a concave eyepiece. Galileo used this design the following year. In 1611, Johannes Kepler described how a telescope could be made with a convex objective lens and a convex eyepiece lens and by 1655 astronomers such as Christiaan Huygens were building powerful but unwieldy Keplerian telescopes with compound eyepieces. Hans Lippershey is the earliest person documented to have applied for a patent for the device.Isaac Newton is credited with building the first ""practical"" reflector in 1668 with a design that incorporated a small flat diagonal mirror to reflect the light to an eyepiece mounted on the side of the telescope. Laurent Cassegrain in 1672 described the design of a reflector with a small convex secondary mirror to reflect light through a central hole in the main mirror.The achromatic lens, which greatly reduced color aberrations in objective lenses and allowed for shorter and more functional telescopes, first appeared in a 1733 telescope made by Chester Moore Hall, who did not publicize it. John Dollond learned of Hall's invention and began producing telescopes using it in commercial quantities, starting in 1758.Important developments in reflecting telescopes were John Hadley's production of larger paraboloidal mirrors in 1721; the process of silvering glass mirrors introduced by Léon Foucault in 1857; and the adoption of long lasting aluminized coatings on reflector mirrors in 1932. Almost all of the large optical research telescopes used today are reflectors.The era of radio telescopes (along with radio astronomy) was born with Karl Guthe Jansky's serendipitous discovery of an astronomical radio source in 1931. Many types of telescopes were developed in the 20th century for a wide range of wavelengths from radio to gamma-rays.